Snr Backend Engineer

Zscaler

About Zscaler Zscaler accelerates digital transformation to ensure our customers can be more agile, efficient, resilient, and secure. As an AI-forward enterprise, we are constantly pushing the envelope, leveraging the world’s largest security data lake to power our cloud-native Zero Trust Exchange platform. This innovation protects our customers from cyberattacks and data loss by securely connecting users, devices, and applications in any location. Here, impact in your role matters more than title and trust is built on results. We say, impact over activity. We seek innovators who actively use AI to amplify their impact and who thrive in an environment where we leverage intelligent systems to stay ahead of evolving threats. We believe in transparency and value constructive, honest debate—we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership, and accountability. We value high-impact, high-accountability with a sense of urgency where you’re enabled to do your best work and embrace your potential. If you’re driven by purpose, thrive on solving complex challenges, and want to be part of the team that’s helping to secure the AI age, we invite you to bring your talents to Zscaler and help shape the future of cybersecurity. Role We are looking for a AI Engineer to join our team. The position is based out at Bangalore or Mohali role, reporting to the Snr Manager, Product Business Operations in the AI Native - Product Operations Platform department. We are seeking a hands-on engineer to help scale the agentic layer of our platform by designing production-grade AI systems and expanding foundational capabilities. This role is built for a strong builder who understands modern AI systems in practice and thrives in a high-velocity, rapid-iteration environment. What you’ll do (Role Expectations) * Build and scale the agentic layer of the AI Native - Product Operations Platform by designing production-grade AI systems and supporting platform capabilities * Develop hands-on across FastAPI, NextJS, and Postgres while applying practical knowledge of RAG architectures, embeddings, and vector retrieval * Implement standards, patterns, and guardrails to ensure AI development on the platform remains scalable, reliable, and cohesive * Partner closely with Product and other stakeholders to translate business needs into scalable technical solutions optimized for cost and throughput * Contribute to a high-velocity delivery environment characterized by frequent releases, rapid iteration, and end-to-end execution Who You Are (Success Profile) * You are a pragmatic builder with a passion for rolling up your sleeves to create, iterate, and ship production-grade software. * You thrive in ambiguity and fast-paced environments, maintaining focus and execution velocity amidst rapid change. * You act like an owner, bringing deep accountability, a strong bias for action, and end-to-end execution to every project. * You are a high-trust collaborator who excels at partnering with cross-functional teams to translate business needs into technical solutions. * You champion simplicity, with a proven ability to distill complex technical problems and AI architectures into clean, actionable plans. What We’re Looking for (Minimum Qualifications) * 8 +yrs of industry experience with demonstrated curiosity and active exploration of AI tools, with a proven history of integrating new technologies to enhance daily workflows and augment problem-solving * Bachelor’s degree in Computer Science or a related technical field, or equivalent practical experience * Strong hands-on software engineering experience with FastAPI, NextJS, and Postgres, including building application stacks end-to-end * Proven experience building and deploying agentic AI systems, RAG architectures, embeddings, and vector retrieval systems in production environments * Familiarity with prompt engineering, orchestration patterns, agent workflows, and the implementation of evaluation frameworks or guardrails * Comfortable operating in a high-velocity delivery environment with a track record of supporting weekly feature releases What Will Make You Stand Out (Preferred Qualifications) * Experience working in a startup or fast-scaling product environment with a broad technical range across backend, frontend, and platform engineering * Proven ability to design AI systems optimized for low cost, high throughput, extensibility, and long-term scalability * Experience selecting and implementing AI development tools, observability frameworks, and LLM application patterns #LI-Hybrid  #LI-RG At Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with. We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including: * Various health plans * Time off plans for vacation and sick time * Parental leave options * Retirement options * Education reimbursement * In-office perks, and more! Learn more about Zscaler's hybrid working model and benefits here. By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals. We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws. See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

Proxima Fusion

WHO WE ARE Proxima Fusion is Europe’s fastest-growing fusion company and the continent’s best-funded fusion player, as well as the first spin-out from the Max Planck Institute for Plasma Physics (IPP). Backed by over €650M and powered by a growing team across Munich, Zurich, and Oxford, we are developing the hardware and infrastructure needed to deliver the world’s first commercial stellarator fusion power plant. Our concept advances the most mature fusion technology out there, the Wendelstein 7-X stellarator, through two next-generation machines: Alpha and Stellaris. Our work combines stellarator optimization, advanced computation, machine learning, and high-temperature superconducting magnets to unlock higher-performance designs that were previously out of reach. Turning these designs into a functioning fusion power plant requires excellence and ownership across every discipline, from physics and engineering to software, manufacturing, law, and business functions. TEAM AND ROLE * Architect a breakthrough energy technology – Play a defining role in designing and integrating the systems that will power the world’s first commercial stellarator fusion plant, influencing decisions that shape the future of clean energy. * Solve some of the most complex engineering challenges in fusion – Work across magnet design, HTS technology, manufacturing, structural integration, and controls, turning cutting-edge science into real hardware * Move fast and build what matters – Join a highly ambitious, multidisciplinary team that combines cutting-edge simulation with hands-on engineering, turning bold ideas into real hardware on the path to commercial fusion. WHY JOIN PROXIMA FUSION * Impact: Work on the literal frontier of energy science. * Environment: Be embedded within the PSI ecosystem, collaborating with some of the world’s leading experts in superconductivity. * Flexibility: As an early hire in this department, you will have a significant say in the tools we use and the culture we build. YOUR IMPACT At Proxima Fusion, we are designing the first generation of fusion power plants to provide the world with clean, carbon-free energy. The heart of our reactor lies in its superconducting coils. These magnets must operate in extreme environments - near absolute zero temperatures and under massive mechanical stress. We are looking for a versatile engineer to join our team at the Paul Scherrer Institute (PSI). You will be responsible for developing the instrumentation and testing infrastructure that allows us to validate our magnet prototypes. Whether you are selecting a sensor for a cryogenic environment or coding the real-time dashboard for a test run, your work will directly accelerate the path to commercial fusion. WHAT YOU WILL DO Your role combines conceptual design, development of modeling and analysis tools, and hands-on experimental work. You will contribute to instrumentation, testing, and software development activities across three primary domains: 1. Instrumentation Design for Superconducting Devices You will support the implementation of our testing protocols, helping instrument coils, set up measurement systems, and execute tests to ensure reliable and precise data collection. * Concept to Execution: Develop instrumentation concepts for testing tapes, conductors and coils for QA purposes as well as in nominal and off-nominal conditions. * Sensor Selection: Identify and source sensing technologies (temperature, strain, voltage taps) capable of surviving high magnetic fields and cryogenic temperatures. * Hands-on Implementation: Lead the delicate installation of sensors onto prototypes. You’ll be responsible for the schematics, wiring standards, and procedures that ensure data integrity in extreme conditions. 2. Test Stand Software & Hardware Development Building the magnet is only half the battle; building the system that listens to it is the other. * Framework Architecture: Design a scalable, modular test framework using DAQ hardware to automate experiments. * Systems Integration: Integrate and maintain the test-stand control and measurement stack, including PSUs, DAQ systems, and synchronization hardware. This includes developing communication interfaces, coordinating device operation, and ensuring reliable interaction between hardware and software. * Data Strategy: Implement standardized data formats and live visualization tools (e.g., Grafana) so our physics team can analyze results in real-time. * Commissioning: Oversee the full lifecycle of test-stand hardware, from initial wiring and calibration to final commissioning. 3. Advanced Sensor Innovation You will push the boundaries of how we "see" inside a high-field magnet. * Next-Gen Solutions: Research and develop sensor solutions necessary to qualify coil performance. * Signal Integrity: Analyze measurement error sources such as linearity, drift, and Signal-to-Noise Ratio (SNR) to understand measurement uncertainty and improve signal quality through appropriate calibration, filtering, and acquisition strategies. * High-Field Testing: Design and execute tests in high-field environments (exceeding 20 T). Support the development of fast analog signal acquisition or FPGA-based and processing systems used to capture and analyze experimental data. WHO YOU ARE We are looking for an engineer who enjoys the bridge between the digital and physical worlds. * Background: Degree in Electrical Engineering, Mechatronics, Physics, or a related field. * The "Maker" Mindset: You are comfortable with a soldering iron in one hand and a Python script in the other. * Technical Breadth: Ideally, you have experience in at least two of the following: Sensors/Electronics, Data Acquisition, Cryogenics, or FPGA/Real-time systems. * Adaptability: You thrive in a startup environment where the scope of activities can shift. If you have a unique skill (like fiber optic splicing or high-vacuum experience), we can adjust the role to leverage it. INTERVIEW PROCESS * Recruiter Interview (30-60 min) * Technical Screening (30 min) * Technical Panel (3x60 min) *This role sits at L3 of our framework, please inquire during the recruitment process for further information. At Proxima Fusion, our mission is bold: making limitless clean energy a reality. To get there, we need a high-performing, diverse team that brings different perspectives, challenges assumptions, and builds together with purpose. We know that diversity of thought and experience leads to better ideas, stronger execution, and a more resilient team. We don’t look at how you identify, what you look like, who you choose to worship or what ethnicity you are. We care about what you can bring to the table.

Harmattan AI

ABOUT US Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected. ABOUT THE ROLE As an FPGA Radar Engineer, you will help design and implement the real-time radar signal-processing pipeline that powers our drone sensing capabilities. You will work closely with hardware and embedded software engineers and be involved throughout the development cycle, from architecture and RTL implementation to integration and field validation. This role is ideal for an engineer with a strong background in DSP, practical FPGA experience, and a genuine interest in radar systems. RESPONSIBILITIES * Develop FPGA-based radar signal-processing pipelines, encompassing key stages such as pulse compression, Range/Doppler processing, CFAR detection, and target tracking handoff. * Contribute to the RTL implementation of radar waveform generation and reception, including both FMCW and pulsed waveforms. * Perform system-level radar simulations, including Range-Doppler maps, SNR modeling, clutter analysis, and assessment of detection performance under realistic conditions. * Write and maintain testbenches and validation frameworks tailored to radar processing chains, enabling rapid debugging and iteration. * Collaborate closely with RF and hardware engineers to ensure seamless integration between FPGA designs and the radar front end - including antenna, Tx/Rx modules, ADC/DAC interfaces, timing, and synchronization. * Document the interfaces between the radar processing core, system software, and hardware layers. CANDIDATE REQUIREMENTS * Master’s degree (or equivalent) in Electrical Engineering, Signal Processing, Applied Physics, or a related field. * At least 3 years of hands-on FPGA development experience, including practical work with radar or sonar signal processing (using VHDL and/or Verilog/SystemVerilog). * Strong working knowledge of radar signal processing fundamentals, including pulse compression, matched filtering, Range-Doppler processing, CFAR, and clutter rejection. * Familiarity with FMCW and pulsed radar architectures, including waveform generation and digital back-end processing on FPGA. * Solid foundation in DSP concepts: FFT, FIR/IIR filtering, windowing, fixed-point arithmetic, and precision management. * Experience with test benches development and hardware-in-the-loop validation. * Rigorous and collaborative, with the ability to work effectively across hardware, software, and systems teams. * 100% dedication to Harmattan AI’s mission, vision, and ambitious growth plans, ready to go the extra mile to ensure operational excellence. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.